The following article outlines the best practices to override a grade on a Quality Inspection Test and change the grade from what is rolled up on the test lines.

There are four ways to override a test grade to be different than what the test lines reflect. If overriding a grade is:

1. Because sampling has deemed remaining measurements irrelevant (e.g., enough samples have failed that there is no value in taking other measurements): consider using AQL with AQL failure codes.
2. A rare scenario: Re-test with adjusted values or criteria.  This provides traceability documenting the original failure.
3. A frequent scenario: Add a field on the template that allows an override to provide the most traceability. This provides traceability and incorporates this as part of the practice. You must create an additional ‘pass’ grade with another, lower grade priority than the fail/error grades.
4. Because your organization has multiple pass and multiple failure scenarios: Create multiple pass and failing grades with the appropriate criteria for each. For example, the product failed testing based on ideal pass criteria but could still pass acceptable testing for a customer, you could have a grade PASSIDEAL with the ideal acceptable pass criteria configured and PASSMIN with the minimum acceptable pass criteria configured to be usable for the next stage.

Example scenarios

Here are some scenarios with general guidance to consider when choosing each approach.